Digital BW, The Print

I've been printing on Epson Exhibition Fiber using the K3 inskset and getting wonderfully neutral prints under by 5000k lighting setup.

After not printing for a couple of weeks, the prints today are all coming out with a green cast. I have to go -26 vertical 26 horizontal to even approach a neutral tone.

I thought I had a faulty magenta cart, so I replaced it with a new one. Nope. Same thing. Even opened a new box of paper, thinking the other box had gone bad.

Even printed through QTR on both Ilford and Silver Rag with curve 1 cool and curve 2 neutral, and still got the green cast.

Do I have a plugged magenta line? Any ideas at all out there? Thanks!

G